One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,6)(4,5)(7,8)(9,10)(11,16)(12,14)(13,15)(18,19)(20,24)(25,26,29,28)(27,31,32,30)(2,5)(6,8)(9,11)(10,12)(13,14)(15,16)(18,19)(22,23) involution — undirected(3,7)(6,8)(11,14)(12,16)(17,18,21,19)(20,22,24,23)(25,26,29,28)(27,30,32,31)(1,2)(3,6)(4,5)(7,8)(9,10)(11,16)(12,14)(13,15)(17,19,21,18)(20,23,24,22)(25,27,29,32)(26,30,28,31)(1,3)(2,6)(4,7)(5,8)(9,12,13,16)(10,14,15,11)(17,20)(18,22)(19,23)(21,24)(25,28,29,26)(27,31,32,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.